A-Z Popular Blog Projects Search »
Business Analysis
Related Guides
Related Topics

9 Types of Requirements Failure

 , updated on
Requirements failure is the failure of a project or product that can be largely attributed to requirements. The following are common types of requirements failure.

Big Bang

Implementing a large number of requirements at one time. Stakeholders commonly see faults in requirements when they see them implemented. As such, fast cycles of implementation and requirements refinement can significantly reduce the risk of requirements failure.

Assumptions & Expectations

Stakeholder assumptions and expectations that go undocumented. These only surface when the stakeholder sees requirements implemented.

Reality Mismatch

Requirements that are inconsistent with realities such as business processes, customer needs and the competition. For example, system requirements that don't match business processes because each stakeholder understands a small part of the process but lack an end-to-end view.

Solution Space

Requirements that specify the solution as opposed to the business need. As an illustrative example consider a customer at a restaurant who provides the chef with a list of ingredients that must be used in a dish. The customer isn't a chef but nonetheless plays the role of chef through their requirements. The result is a dish that doesn't taste good.

Benefit Shortfall

Overly optimistic business cases that overstate or overestimate the value of requirements.


Requirements that make sense individually but lack value or logic as a set. This occurs when requirements are contributed by many individuals without an owner who pulls them together in a cohesive direction.

Non-Functional Requirements

Specifying functions and features while missing aspects of quality. For example, system requirements that lack non-functional requirements in areas such as performance, maintenance, operations, resilience and security.

Requirements Quality

Quality issues with requirements themselves such as requirements that are unclear, open ended, infeasible or that conflict with each other.


A failure to consider unknowns. For example, a business case that only considers positive things that can happen with no consideration of risk.
Overview: Requirements Failure
The failure of a project or product that can be largely attributed to requirements.
Related Concepts
Next: Requirements Quality

Business Analysis

This is the complete list of articles we have written about business analysis.
Audience Analysis
Behavioral Requirements
Best In Class
Black Box
Brand Analysis
Budget Planning
Business Analysis
Business Architecture
Business Attributes
Business Case
Business Conditions
Business Models
Business Needs
Business Needs Analysis
Business Plan
Business Requirements
Business Rules
Business Strategy
Business Swot
Business Theory
Capacity Planning
Choice Architecture
Competitive Intelligence
Context Of Use
Cost Benefit Analysis
Success Factors
Data Analysis
Data Dredging
Data Mining
Decision Analysis
External SWOT
Feasibility Analysis
Fishbone Diagram
Gap Analysis
Ishikawa Diagrams
Management Accounting
Market Research
Needs Analysis
Net Present Value
Operations Analysis
Organizing Principle
Pain Points
Performance Analysis
Problem Analysis
Productivity Analysis
Project Charter
Proof Of Concept
Qualitative Analysis
Requirements Gathering
Scenario Planning
Situation Analysis
Statement Of Work
Statistical Analysis
Story Points
Strategic Drivers
SWOT Analysis
Technology Analysis
Terms Of Reference
Total Cost Of Ownership
Use Case
User Stories
Voice Of The Customer
What-if Analysis
Workflow Analysis
If you enjoyed this page, please consider bookmarking Simplicable.


The common types and formats of requirements.

Product Requirements

Common examples of product requirements.

Quality Requirements

Common examples of quality requirements.

Requirements Examples

Common types of business and non-functional requirements.

Missing Requirements

An overview of requirements shortfall.

Usability Requirements

Common examples of usability requirements.

Acceptance Criteria Examples

A definition of acceptance criteria with examples.

Customer Needs Analysis

The definition of customer needs analysis with examples.

Business Needs

The common types of business need.

Project Risk

A list of common project risks.

Cost Contingency

The common types of cost contingency.

Risk Response

The common types of risk response.

Risk Minimization vs Risk Management

The difference between risk minimization and risk management.

Risk Aversion

The definition of risk aversion with examples.

Risk Capacity

An overview of risk capacity with examples.

Performance Risk

The definition of performance risk with examples.

External Risk

The definition of external risk with examples.
The most popular articles on Simplicable in the past day.

New Articles

Recent posts or updates on Simplicable.
Site Map